Automatic sash-raising mechanism



A. D. AND E. 1. RAWLINGS.

AUTOMATIC SASH RAISING MECHANISM.

APPLICATION FILED NOV. 6, 1920.

Patented Aug. 15, 1922.

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ARTHUR DANIEL. RAwLING-S, OF CLAPHAM, LONDON, AND ERNEST JOHN RAWTIINGS,

0F BALHAIII, LONDON, ENGLAND,

AUTOMATIC SASH-RAISING MECHANISM.

Specification of Letters Patent. Patented Aug; 15 1922 Application filedNovember 6, 1920. Serial No. 422,344.

(GRANTED UNDER THE PROVISIONS OF THE ACT OF MARCH 3, 1921, 41 STAT. L,1313.)

2 '0 all whom it may) concern:

Be it known that we, ARTHUR DANIEL RAWLINGS and ERNEST JOHN RAWLINGS,subjects of the King of Great Britain and Ireland residing,respectively, at 11 Sandmere Roa Glapham, London, S. W England, and 11Streathbourne Road, Balham, London, S. \V., England, have invented newand useful Improvements in Automatic Sash- Raising Mechanism (for whichwe have filed applications in Great Britain March 17, 1919, Pat. No.144,804, and in France March 15, 1920, provisional No. 12,961), of whichthe following is a specification.

The invention relates to the sashes of motor cars and other roadvehicles, railway carriages, and other sliding sashes, and to mechanismby which said sashes are automatically raised.

The invention consists of improvements in the automatic sash-raisingmechanism described in the specification of U. S. A. Patent No.1,154,432, of the present applicants.

The improvements, though they are applicable to other sliding sashes,will, for the sake of brevity, be described in their application to thedoors of vehicles.

The sash-raising mechanism described in the above referred tospecification consists of a springactuated roller which is rotatablymounted in a case fixed to the'centre of a door and is provided at itsends with fusee-barrels to which are attached and upon which are woundthe ends of a cord passing under pulleys supported from the lower partof the sash. In the case of this mechanism the spring-actuated roller isheld and released through the medium of a brake acting on thespring-actuated roller.

According to the present invention the automatic sash-raising mechanismis preferably mounted to be movable in and out and this in and outmovement is utilized to call into action the means for locking the sashin any raised position .or for releasing the sash and for permittingitto be raised under the influence of the automatic sashraising mechanism.

According to one embodiment of the invention the automaticsash-raisingmechanism is secured at the lower ends to a pair of pivoted arms whichare adapted to engage the sash and prevent or permit the movement of thesame. The particular means forv mounting the sash-raising mechanism'invention the in and-out movement is effected in one direction by meansofsprings and in the opposite direction by manual retractlon. a

In accordance with another embodiment of the invention the springs a-reomitted and both the in and out displacements are effected manually,

In certain cases, for instance when the invention is applied to the sashof a landaulette, cabriolet or coup,'the case containing thesash-raising mechanism maybe secured to the upper ends of arms pivotedto the lower half of a door and be provided on its inner facewith astrip of rubber or like materialadapted to bear against the sash of thedoor.

Further objects and advantages of the present invention will be setforth in further detail in the accompanying specification and moreparticularly pointed out in the appended claims. v J

The invention is illustrated by the accompanying drawings.

Of these drawings, Fig. 1 is an elevation of a door provided with thepresent improvements, viewed from its inner side, parts being brokenaway. Fig. 2 is a vertical sec.- tion of the same door. Fig. 3 is afragmentary view, drawn to an enlarged scale, illustrating means forlocking the sash of a door when the sash is in its uppermost position.

Fig. 4 is a fragmentary view, drawn to an enlarged scale, illustrating amodification. F ig. 5 is a fragmentary view, also drawn to an enlargedscale, illustrating means for locking the sash of a door when the'sashis in any position and for moving the pivoted arms supporting the caseof the sash-raising mechanism.

Referring first to Figs. 1 to 3, 1 isa casing which contains thespring-actuated roller of a sash-raising mechanism of the kind hereinreferred to and is secured to the lower ends of two metal arms 2 ofsomewhat narrow width which are mounted for an in and out movementpreferably by pivoting them at their upper ends to the upper parts ofthe side members of the door 3. These arms 2 are provided on their frontfaces with. strips 4- of rubber or other friction material and arecontrolled by any suitable arrangement of springs which constantly pressthe strips 42 against the side margins of the sash 5 of the door 3.Metal plates 6 of greater width than the side members of the frame ofthe door are secured to the upper halves of said members, and serve bothas stops for limiting the inward movement of the piroted arms 2 and ascover plates for concealing said arms. The springs which constantly tendto press the rubber or like strips 41- against the side margins of thesash 5, though they may be of other construction and be otherwisepositioned, preferably consist, as shown in Fig. 2, of lengths 7 ofblade steel. secured to the stop and cover plates 6 and bearing at theirends against the arms 2. The strips 4- of rubber or like materialsecured to the pivoted arms 2 are preferably made of lesser length thanthe arms, say of about half the length thereof, as shown in Fig. 2. Afinger-piece consisting of an up standing lug 8 is secured to the centreof the casing 1 so that the latter can he moved inward. Thisfinger-niece 8 maybe replaced by any other device fulfilling the samepurpose. 9 is a cord for lowering the sash 5. The cord 9 is preferablyadapted to be automatically wound up, when released, by means ofmechanism of the kind described in the specification of an applicationfor a U. S. A. patent, Serial No. l22,343 filed November 6, 1920, madeby the present applicants.

The improved sashraising mechanism acts and is used as follows:

Normally the rubber or like strips 4 secured to the front faces of thepivoted arms 2 will bear against the side margins of the sash 5. If thesash 5 is to be raised or raised to a further extent the occuiant of themotor car or other vehicle places his forefinger behind the fingerpiece8 and pulls on same, so drawing the case 1 towards him and drawing therubber or like strips 4 secured to the front faces of the pivoted arms 2away from the sash 5. The spring of the sash-raising mechanism will nowbe free to act, and will raise the sash 5 until such time as theoccupant of the car or the like ceases to pull on the finger-piece 8.The sash 5 is lowered by pulling on the cord 9, which has the dualeffect of drawing the rubber or like strips i out of contact with thesash 5 and winding up the spring of said mechanism.

According to a modification illustrated by Fig. 4. the strips 4. ofrubber or like material, instead. of being secured to the front faces ofthe pivoted arms 2, are fixed to the front faces of rocking arms 10 ofsuitable length which are pi-votally mounted at or about their centreson the arms 2. As in the previously described construction the springscontrolling the pivoted arms 2 may consist of lengths 7 of blade steelbearing against the arms 2 and secured to the stop and cover plates 6fixed to the upper halves of the side members of the frame of the door3.

The improved sash-raising mechanism may be provided with means by whichthe sash 5 will be locked when it has been raised to its highestposition. For this purpose metal strips 11 of a section corresponding toa right-angled triangle are secured to the pivoted arms 2 with theirhypothenuses or longest sides facing the sash 5., and projections 12 ofcorresponding shape having their hypothenuses or longest sides facingthe.

inner side of the door are fixed to the bottom of the sash With thisarrangement, when the sash 5 has been raised to the high st position thelowermost sides of the projections 12 ilXGfl to the bottom of ,the sash5 will. be slightly above the uppermost s des of the strips orprojections 11 secured to the pivoted arms 2. Consequently when thepivoted arms 2 are released the projections 11 fixed to said arms willcome below the projections 12 secured to the sash 5, and the latter willbe locked and cannot be pushed down from outside the motor car or othervehicle to which the sasl'i-raisingmechanism is fitted.

The improved sash-raising mechanism may he provided with means by whichthe sash 5 may be locked in any position. An example of such means isillustrated by Fig. 5 and will iow be described. 13 is a springcontrolled two-armed lever which ongages at its upper end. with anopening 14 in the casing 1 and is mounted on a pin 15 supported by ahollow casting 16 which. is secured to the inner face of the door 3immediately below the centre of the casing 1. 17 is a screw whirl:engages with a tapped hole in the lower arm of the lever 13 and,projecting through an opening formed in the hollow casting 1G,terminates in a milled head 18. The milled head 18 of the screw 17normally serves as a button, by pressing which the pivoted arms 2 can bemoved so as to release the sash and allow same to be raised, but if itis desired that the sash 5 shall be locked in any position the screw 17is rotated so as to draw the lower end of the two-armed lever 13 towardsthe opening formed in the hollow casting 16 and firmly press the rubberor like strips 11 on the front faces of the pivoted arms 2 or on theinner faces of the rocking arms 10 against the sash 5. The spring 19controllingthe two-armed lever 13 may be of a strength manipulation ofbutton .18. Although in the construction herein described the frictionstrips are preferably mounted upon the arms 2 or equivalent parts, thisis not essene tial and they maybe otherwise disposed. Any suitable formof sash engaging means may be provided which will frictionally engagethe sash or parts cooperating therewith to retain the sash in adjustedposition. The modification in which the casing 1 is secured to the upperends of arms pivoted to the lower half of a door and is provided with astrip of rubber or like material adapted to bear against the sash of thedoor will be readily understood from the foregoing description.

Having now described our invention, what we have invented and desire tosecure by Letters Patent of the United States is as follows: v I

l. The combination with a door having a sash opening therein and a sashslidable vertically in said opening, of v a pair of spring-controlledarms pivoted at their1upper ends at opposite sides of said opening andprovided with friction strips normally engaging said sash, and automaticsashraising mechanism secured to the lower ends of said arms and movablein a horizontal plane for swinging the arms on their pivots thereby tocarry the friction strips out of contact with the sash and permitthesame' to be raised. I

2. The combination with a door having a sash opening therein and a sashslidable vertically in said opening, of' a pair of spring-controlledarms pivoted at their up I per ends at opposite sides of said opening, apair of rocking arms pivoted intermediate their ends on saidspring-controlled arms, and provided with friction strips normallyengaging said sash, and automatic sash-rais ing-mechanism secured to thelower ends of said spring-controlled arms and movable in'a horizontalplane for swinging said arms thereby to release the sash and permit thesame to be raised. a

3. The combination with a door having a sash opening therein and a sashslidable vertically in said opening, of a pair of spring-controlled armspivoted at their up per ends at opposite sides of said opening andprovided with friction strips normally engaging said sash, automaticsash-raising mechanism secured to the lower-ends of'said arms andmovable 1n a horizontal plane for swinging the arms on their pivotsthereby to carry the friction strips out of contact with the sash andpermit the same to be raised, and means for locking said sash in anyadjusted position.

4. The combination with a verticallyslidable sash, of automaticsash-raising mechanism mounted to be movable in a substantiallyhorizontal plane .and sash-engaging means movable concurrently therewithinto or out of contact with the sash, and means for moving said raisingmechanism and sash-engaging means to permit the sash to.

be automatically raised or to be locked any desired position.

5. The combination with a frame-having a sash opening therein and a sashslidable' vertically in said opening, of a pair of arms pivoted attheir. upper ends at opposite sides of said opening and provided withmeans adapted to engage. said sash, automatlc sash-raising mechanism"secured to the lower ends of said arms and movable in a substantiallyhorizontal plane. for

swinging the arms on their pivotsthereby to carry the aforesaidsash-engaging means out of .or into contact with thesash and permit thesame to be raise'd '0I.lOCl 6Cl, and means for swinging said arms andraising mechanism.v

6. The combination withi a1 frame'and a i, i I

sash'slidable vertically therein, of apair of arms pivoted on said frameand provided with friction strips adapted to engage said sash, automaticsash-raising mechanism secured to the lower ends oflsaidarms and fmovable in a horizontal plane forfswinging "the arms on their pivotsthereby to carry arms pivoted on said sash frameandpro vldedW1th'.fI'lQt1OI1 strips. adapted to-en;

gage said sash, automatic sash-raising mechanism secured to the lowerends of saidarms and movable'substantially in a =horizontal plane forswinging the arms on their pivots therebyto carry the frictionstrips outof contact with the sash and permit the same tobe raised, and means forlocking saidsash in any adjusted position.

In testimony whereof we have signed our names to this specification-IERNEST JOHN RAWLINGS.

